Well, Bob, there are two different views about those West Coast Capes. I assume you mean Cape Flattery, which starts the trip; Cape Mendocino, at the top of California and Pt. Conception, which is the entry into So Cal.
While my thought is to avoid winds of 40 knts and waves of 15', certainly in a 25' C-Dory, I've been past those capes when it's flat calm. Since I was always in a sailboat (does that tell you something?) I had to turn on the motor to pass those capes. Luck beats skill.
My point is that with the speed of a C-Dory, you can go out, see the capes individually, and come back in. But, one needs timing for that. I wanted to go out the Golden Gate this summer, and go UP WIND to Drakes Bay, but the winds never allowed that.
Anyway those capes are not always blowing.
Do you know that there is a pod of Orcas in the LA Channel? We saw them this summer. And, no, they weren't porpoises.
Boris